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  3. Questions 1-6Choose the appropriate letters A-D and write them in boxes 1-6 on

Questions 1-6Choose the appropriate letters A-D and write them in boxes 1-6 on

游客2024-01-09  7
问题 Questions 1-6
Choose the appropriate letters A-D and write them in boxes 1-6 on your answer sheet.
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选项 A、dishwashers are very efficient machines.
B、tap water is as polluted as bottled water.
C、indoor pollution rivals outdoor pollution.
D、gas masks are a useful protective device.
答案 C
解析 Para 8: ... disproportionate effort is wasted campaigning against certain forms of outdoor pollution, when there is as much ... indoors, right under people’s noses.
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